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我在Wi7环境中调试了几个星期,没有问题。然后今天我拔掉了电路板的电源,在PCB上焊接了一些测试引线,距离微电脑几英寸,重新连接,MPLab没有识别出PK3。重启后,同样的问题。所以我尝试了我的Mac上的PK3,它被认可了。所以我决定升级到最新版本的MPLAB 3(3.335到3.40)。它识别PK3但我得到目标设备ID是0错误消息。有没有可能像这样突然死去?我看不到板上的任何不寻常的东西。
以上来自于百度翻译 以下为原文 I've been debugging a board for a few weeks now in a Win7 environment, no issues. Then today I un-powered the board, soldered some test leads onto the PCB, several inches from the micro, reconnect and MPLab didn't recognize the PK3. After a reboot, same issue. So I tried the PK3 on my mac and it was recognized. So I decided to upgrade to the latest version of MPLAB 3 (3.335 to 3.40). It recognizes the PK3 but I get the Target device ID is 0 error message. Is it possible the micro just died suddenly like that? I don't see and couldn't measure anything unusual on the board. |
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10个回答
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它可能会死,但很可能你焊接的东西不正确。
以上来自于百度翻译 以下为原文 It could die, but most likely you soldered something incorrectly. |
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NorthGuy:谢谢你的建议。这是一个显而易见的答案,但是把电线焊接到一个垫子上通常不会造成这样的问题。我用一个PicDEM Explorer演示板在相同的微电路上尝试了PK3,一个我没有焊接任何东西,并且我得到了同样的错误。这就意味着PK3存在问题。我看到一些线程提到了一种重置所有固件的方法,但是在MPLab X.的最新版本中似乎找不到参考命令。有没有办法重置PK3上的所有东西,或者本质上是砖块?
以上来自于百度翻译 以下为原文 NorthGuy: Thank you for the idea. That would be the obvious answer but soldering a wire to a pad usually doesn't cause the kind of problem. I tried the PK3 with a PICDEM Explorer Demo Board based on the same micro, one that I didn't solder anything to, and I get the same error. That points to a problem with the PK3. I have seen some threads that mention a way to reset all the firmware that's on there but can't seem to find the referenced commands on the latest version of MPLab X. Is there a way to reset everything on the PK3 or is it essentially bricked? |
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如果你能在MPlab中看到这个设备,它没有砖块。按住按钮,同时插入PICKit3启动它在引导加载器中。PICDEM资源管理器演示板是如何供电的?这是一个焊点溅在皮克特3损坏。
以上来自于百度翻译 以下为原文 If you can see the device in MPlab it is Not Bricked. Hold the Button down while plugging the PICKit3 in starts it in the Bootloader. How was the PICDEM Explorer Demo Board Powered? It is posible a solder splash cased the PICKit3 to become damaged. |
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NKurzman:谢谢你把PK3放在引导加载模式中的提示。明天我要试一试。Explorer板通过交流适配器通过它的桶连接器供电12伏。董事会似乎权力正常,所以我不认为这是一个权力问题。我尝试了两个不同的电源板,我调试,所以我排除了电源问题。另外,MPLAX X没有发现一个错误,说明没有检测到电压。至于焊料损坏PK3,它不是在板上,当我在焊接,它是在塑料外壳。我也没有看到任何类似于PK3的伤害,至少没有外部的伤害。
以上来自于百度翻译 以下为原文 NKurzman: Thanks for the tip about putting the PK3 in boot loader mode. I'll give that a try tomorrow. The Explorer board was powered with 12 volts from an AC adapter through it's barrel connector. The board seemed to be powered properly so I don't think it is a power issue. I tried two different supplies with the board I'm debugging so I ruled out a power supply issue. Also, I don't get an error by MPLab X stating that voltage is not detected. As to the solder damaging the PK3, it wasn't on the board when I was soldering and it is in a plastic housing. I also didn't see anything resembling damage on the PK3, at least nothing external. |
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东西坏了,如果有预算允许的话,总是很好。
以上来自于百度翻译 以下为原文 Stuff Breaks. It is always nice to have a spare if Budget allows. |
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我替换了PK3,一切都有效了。我猜PK3突然放弃了鬼。谢谢你的想法。
以上来自于百度翻译 以下为原文 I replaced the PK3 and everything worked. I guess the PK3 gave up the ghost suddenly. Thanks for your ideas. |
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如果PICTIT3是相对新的,您可能能够得到它。HTTP//www. McCHIP.COM/CISAR/HOM.ASPX
以上来自于百度翻译 以下为原文 If the PICKit3 is relatively new you might be able to get it replaced. http://www.microchip.com/cisar/Home.aspx |
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MPLAB最近是否自动更新了PICTIT3固件?我曾经在多个PICkit3中遇到过这个问题,其中MPLAB有时会自动更新固件,然后PICkit3将无法识别特定的微计算机。解决方案是在PICTIT3上降级固件。这是一个固件问题,微芯片是不知道或尚未能够修复。
以上来自于百度翻译 以下为原文 Did MPLAB automatically update the PICkit3 firmware recently? I've had this issue with multiple PICkit3's where MPLAB will sometimes auto update the firmware and then the PICkit3 will not recognize certain micros. The solution is to downgrade the firmware on the PICkit3. This is a firmware issue that Microchip is either not aware of or has not yet been able to fix. |
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如果你能描述如何重现问题以及哪个PIC,他们就能修复它。你需要放一张支持票,或在MPLab X Fourm上留个帖子,或者两者都做。
以上来自于百度翻译 以下为原文 If you can describe how to reproduce the Issue and which PIC then they can fix it. You would need to put in a support ticket, or leave a Post on the MPLab X Fourm, or do both. |
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